Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

SAC NWR (NWRC1)

Lat: 39.41722°NLon: 122.1825°WElev: 120.0ft.

NA

45°F

7°C

Humidity 100%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 07 Dec 06:29 PM PST
Extended Forecast for

8 Miles ENE Williams CA

  • Tonight

    Tonight: Widespread dense fog, mainly between midnight and 5am.  Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Partly Cloudy
    then Dense
    Fog

  • Monday

    Monday: Widespread dense fog, mainly before 8am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light southeast wind.

    High: 53 °F

    Dense Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Light north northwest wind.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly between midnight and 5am. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Monday
Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light southeast wind.
Monday Night
Mostly cloudy, with a low around 42. Calm wind.
Tuesday
Partly sunny, with a high near 57. Light north northwest wind.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Williams CA
 39.2°N 122°W (Elev. 46 ft)
1:20 pm PST Dec 7, 2025
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database